Lenze E94P PositionServo with MVOB - Manual (Page 84)

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Operation
Good Current Trace
Uniform current pulses during accel/
deceleration and stable current during steady
state velocity.
Instability in Drive Output Current
(Note: Channel 2 trace has been removed for
clarity).
8) End Velocity Tuning
Remove the Enable Input from input A3 (disable the drive). In MotionView, click on the [Indexer] folder for
the drive. Click [Reset] on the program toolbar. If the drive is to be run in just velocity mode then tuning
is now complete. If the drive is to be used in Positioning mode continue with ‘Tuning the Drive in Position
Mode’, section 6.8.3.
6.7.3 Manually Tuning the Drive in Position Mode
The Position Loop can also be manually tuned. Manual Velocity Tuning should be carried out prior to the
manual tuning of the position loop. Refer to the Velocity Tuning section, 6.7.2.
1) Parameter Set up
In MotionView, open the [Limits] folder and then the [Position Limits] sub-folder. Set the [Position Error]
and [Max Error Time] parameters to their maximum values to effectively disable the position error trip while
tuning takes place. Ensure the system is safe to operate in this manner.
Position Error = 32767
Max Error Time = 8000
The Drive Mode, Reference and Enable Switch Function parameters are automatically configured by the
velocity tuning program. They do not require setting at this stage.
2) Importing the Position Tuning Program
Before importing the Position Tuning Program, the example programs must be installed from the
Documentation CD that shipped with the drive. If this has not been done then please do so now.
To load the TuneP program file to the drive, select [Indexer Program] in MotionView. Select [Import] on
main toolbar. Navigate to [C:\Lenze-ACTech\MVOB\Programming_Examples]. If during the installation of
the Documentation CD files a different default directory was selected, then navigate to that directory. Click
on the [TuneP.txt] file and select [Open].